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1. WO2020062751 - SWITCHABLE VIEWING ANGLE DISPLAY DEVICE

Publication Number WO/2020/062751
Publication Date 02.04.2020
International Application No. PCT/CN2019/074883
International Filing Date 12.02.2019
IPC
G02F 1/13357 2006.01
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
01for the control of the intensity, phase, polarisation or colour
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333Constructional arrangements
1335Structural association of cells with optical devices, e.g. polarisers or reflectors
13357Illuminating devices
G02F 1/133 2006.01
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
01for the control of the intensity, phase, polarisation or colour
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
G09G 3/34 2006.01
GPHYSICS
09EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
3Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
20for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix
34by control of light from an independent source
G09G 3/36 2006.01
GPHYSICS
09EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
3Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
20for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix
34by control of light from an independent source
36using liquid crystals
CPC
G02F 1/133
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics
01for the control of the intensity, phase, polarisation or colour 
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
G09G 3/34
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
3Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
20for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix ; no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
34by control of light from an independent source
G09G 3/36
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
3Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
20for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix ; no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
34by control of light from an independent source
36using liquid crystals
Applicants
  • 昆山龙腾光电股份有限公司 INFOVISION OPTOELECTRONICS (KUNSHAN) CO., LTD. [CN]/[CN]
Inventors
  • 李宏明 LEE, Hung-Ming
  • 赖信杰 LAI, Hsin-Chieh
  • 林沛炀 LIN, Pei-Yang
  • 吴春芸 WU, Chunyun
Agents
  • 上海波拓知识产权代理有限公司 PSHIP FIRM, LLC
Priority Data
201821584554.027.09.2018CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) SWITCHABLE VIEWING ANGLE DISPLAY DEVICE
(FR) DISPOSITIF D'AFFICHAGE À ANGLE DE VISUALISATION COMMUTABLE
(ZH) 视角可切换的显示装置
Abstract
(EN)
A switchable viewing angle display device comprises a display panel, a backlight source, a time schedule controller, a source driving chip and an LED driving module. The display panel is provided with multiple scan lines and multiple data lines. The multiple scan lines and the multiple data lines are disposed to intersect and are insulated from one another to define multiple pixel units arranged in an array. The backlight source comprises multiple LEDs. The time schedule controller is connected to the source driving chip. The source driving chip is connected to the multiple data lines. The LED driving module is connected to the multiple LEDs. The display panel has a narrow viewing angle mode and a wide viewing angle mode. In the narrow viewing angle mode, illumination levels of the multiple LEDs are configured to gradually decrease from a middle portion of the display panel to two sides thereof. In the wide viewing angle mode, the illumination levels of the multiple LEDs are configured to gradually increase from the middle portion of the display panel to two sides thereof.
(FR)
L'invention concerne un dispositif d'affichage à angle de visualisation commutable qui comprend un panneau d'affichage, une source de rétroéclairage, un dispositif de commande d'horaire, une puce d'attaque de source et un module d'attaque de diode électroluminescente (DEL). Le panneau d'affichage comprend de multiples lignes de balayage et de multiples lignes de données. Les multiples lignes de balayage et les multiples lignes de données sont disposées de façon à se croiser et sont isolées les unes des autres pour définir de multiples unités de pixel agencées en un réseau. La source de rétroéclairage comprend de multiples DEL. Le dispositif de commande d'horaire est connecté à la puce d'attaque de source. La puce d'attaque de source est connectée aux multiples lignes de données. Le module d'attaque de DEL est connecté aux multiples DEL. Le panneau d'affichage possède un mode à angle de visualisation étroit et un mode à angle de vision large. Dans le mode à angle de vision étroit, les niveaux d'éclairage des multiples DEL sont configurés pour diminuer progressivement d'une partie centrale du panneau d'affichage vers deux côtés de celui-ci. Dans le mode à angle de vision large, les niveaux d'éclairage des multiples DEL sont configurés pour augmenter progressivement de la partie centrale du panneau d'affichage vers deux côtés de celui-ci.
(ZH)
一种视角可切换的显示装置,包括显示面板、背光源、时序控制器、源极驱动芯片和LED驱动模块,显示面板设有多条扫描线和多条数据线,该多条扫描线与该多条数据线相互绝缘交叉限定形成呈阵列排布的多个像素单元,背光源包括多个LED,时序控制器连接于源极驱动芯片,源极驱动芯片连接于该多条数据线,LED驱动模块连接于该多个LED,显示面板具有窄视角模式和宽视角模式,在窄视角模式下,该多个LED的发光亮度被调节为从显示面板的中部向两侧递减,在宽视角模式下,该多个LED的发光亮度被调节为从显示面板的中部向两侧递增。
Also published as
Latest bibliographic data on file with the International Bureau